Uterine syringe



T. iMAZUMI.

UTERINE SYRINGE.

. APPucATxoN msn Nov. 23. :91s.

Patented May 20, 1.919.

` INI/ENTUR 73:75am@ wA/Z//M/ UNTTED sTATEs PATENT oEEIcE.

TATSUJIRO IMAIZUMI, OF SEATTLE, WASHINGTON.

UTERINE SYRINGE.

Y p Application led November 23, 1918.

To all 'whom it may concern: p l Y Be it known that I, TATsUJIRoIMAIzUMI, a subject of the Emperor of Japan, and resident of Seattle, inthe county of King and State of tvashington, have invented certain newand useful Improvements in Uterine Syringes, of which the following is aclear and exact specication.

This invention relates to improvements in uterine syringes, andthetobject of this improvement is to provide a dilator or instrument forexpanding or opening the passagew-ays to the uterus in combination witha syringe nozzle through which liquid for washing may be introduced.

Further and more specific objects are to provide dilator members thatmay be folded into close proximity to the syringe nozzle While thelatter is being' inserted, and to pro- '.videfsimple and easily operatedmeans for expanding suchdilatormembers after the syringe nozzle has beeninserted to completely open the passageways and permit a thoroughwashing of the vsaine, and a free discharge of the liquid introducedthrough the syringe nozzle.

The invention consists in the novel construct-ion, adaptation andcombination of parts of an instrument of this class asrwill be moreclearly hereinafter described and claimed.

In the accompanying drawings Figure 1 is a view in perspective of aninstrument constructed in accordance with this invention showingthefdilator members in a folded or'closed position; Fig. 2 is a detachedview 1n perspective of the syringe nozzle showing parts of the mechanismfor connecting the dilator members thereto; Fig. 3 is a view partly incross section and partly in elevation of the device showing the dilatermembers in an open or expanded position; and Fig. 4 is a viewin'sectional perspective with parts broken away illustrating theactuating mechanism for the dilator mem'bers.

Referring to the drawings, throughout which like characters of referencedesignate like parts the letter A designates a uteral syringe nozzle ofthe usual curved shape that is provided at its outer end with aplurality of holes B through which water may be discharged and isadapted to have a hose Specification of Letters Patent.

Patented May 20, 1919. semina. 263,837.

suitable devices (not shown) by which the liquid that is used forwashing may be supplied to the nozzle A.'

f The dilator members C, which are preferably, though not essentiallyvfour in number, areeach formed of a single piece of wire having somewhatthe appearance of a flattened wire hoop that is bent to conformsubstantially to the curvature of the nozzle A, and is rounded sharplywithout being pointed at its outer end as indicated at C and bent -toform a short section C2 at its inner end that is substantially at rightangles to the two wires forming thedilator member proper.

VThe sections C2 attheinner ends of the dilator members are eachconnected by a link J with a collar I that is Vslidably mounted on theupperstraight portion of the nozzle A, there being a stop member Nprovided on the nozzle A to preventvsuch member A from sliding -upwardlythrough the collar I and to cause the nozzle'A to be projected outwardlya short distance when the` collar I is forced downwardly into theposition shown in Fig. 3. Y Y

The ends of the .links J are placed in notches in the periphery of thecollar I and are secured to such collar by means of a wire L that passesthrough holes K in the endsof the links and is fastened tightly aroundthe periphery of the collar I, the periphery of such collar beingconcave as indicated at M, Figs. 2 and "Y Disposed below the collar I isanother collar D having peripheral notches F through which the wires Cmay pass and within which such wires are pivotally'held by means of awire H that encircles the concave `periphery E of the'collar D, thewires C having short sharp bend Gr as shown in Fig. 3 to prevent themfrom sliding lengthwise within .the notches F. 4 f

VThecentral portion of the collar D is provided with anupwardly directedange Q for the reception of screws R that extend through the lowerperipheral wall of acasing 5 within which the mechanism that operatesthe dilater members is housed and secure the collar D to the casing 5.

The top of the casing 5 is provided with a centrally arranged threadedhub T through which is screwed a tubular shank U that is provided on itstop end with a suitable thumb nut/by which it may be turned and isadapted to be screwed downwardly onto a washer O that rests on the topof the collar l.

When the shank U is screwed upwardly as shown in Fig. 1, the collar lmay be raised and will permit the dilator members to be folded in closeproximity to the nozzle A preparatory to insertion, the links J andupper ends of the dilator members assuming the position shown in Fig. 4.After the device has been inserted the shank U may be screwed downwardlythus causing the links J to exert an inward pull on the top ends of thedilator members and expand or move the outer ends thereof into aposition as shown in Fig. 3, thereby opening the passageway in whichthey are inserted and permitting a free discharge of the liquid that isemitted from the holes B in the tip of the nozzle A.

It will be understood that changes in the precise form of constructionof the various parts of this device may be resorted to within the scopeof the following claims.

What I claim and desire to protect by Letters Patents, is

l. A uterine syringe of the class described comprising a nozzle, acasing inclosing the upper end of said nozzle, a collar disposed on saidnozzle and rigidly secured to the lower end of said casing, dilatormembers shaped to conform to the curvature of said nozzle said dilatormembers extending upwardly into said casing and being pivoted to saidcollar, another collar movable on said nozzle above said rst namedcollar, links connecting said last named collar with the upper ends ofsaid dilator members and means for moving said last named collar on saidnozzle to expand said dilator members.

E2. A dilator of the class described comprising ashank, a collardisposed thereon, dilator members pivotally secured to the periphery ofsaid collar and projecting in both directions therefrom, another collarslidable on said shank, links connecting the inner end of each of saiddilator members with said slidable collar and means for moving saidslidable collar lengthwise of said shank to move the outer ends of saiddilator members toward or away from each other.

3. A uterine syringe of the class described comprising a nozzle, acasing inclosing the Comes of this patent may upper end of said nozzle acollar disposed on said nozzle and rigidly secured to the lower end ofsaid casing said collar having a concave peripheral edge that isprovided with notches, another collar slidable on said nozzle above saidrst named collar, dilator members constructed of wires bent double andshaped to lie in close proximity to said nozzle said wires being adaptedto pass through the peripheral notches in said lowermost collar andhaving bends therein at the lowermost collar, links each pivotallyconnected at one end with said dilator members, and at the other endwith said last named collar, and a tubular shank threaded through thetop end of said casing and adapted to be screwed downwardly onto saidupper collar to depress'said collar and move the outer ends of saiddilator members away from said nozzle.

4. A uterine syringe of the class described comprising a nozzle adaptedto have its upper end connected with a liquid inlet-hose, a casinginclosing the upper end of said nozzle, a collar disposed on said nozzleand rigidly secured to the lower end of said casing said collar having aconcave peripheral edge that is provided with notches, another collarslidable on said nozzle above said first named collar and having aconcave periphe# ral edge that is provided with notches, dilatorlmembers constructed 'of wires bent double and shaped to lie in closeproximity to said nozzle said wires being adapted to pass through theperipheral notches in said lowermost collar and having bends therein atthe location of said notches, a wire secured tightly around theperiphery of said lowermost collar, links each pivotally connected atone end with said dilator members, a wire extending around the peripheryof said uppermost collar and connecting the other ends of said linksthereto, and a tubular shank threaded through the top end of said casingand adapted to be screwed dowrr wardly onto said upper collar to depresssaid collar and move the outer ends of said dilator members away fromsaid nozzle.

Signed at Seattle, Washington, this 18th day of November, 1918.

TATSUJ 1R() IMAIZUMI.

oe obtained for ive cents each, by addressing the Commissioner ofPatents,

Washington, D. 0.

